CN114954831A - Assembling and welding method for bilge keels in ship closure stage - Google Patents
Assembling and welding method for bilge keels in ship closure stage Download PDFInfo
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- CN114954831A CN114954831A CN202210601576.8A CN202210601576A CN114954831A CN 114954831 A CN114954831 A CN 114954831A CN 202210601576 A CN202210601576 A CN 202210601576A CN 114954831 A CN114954831 A CN 114954831A
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- 238000003466 welding Methods 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 99
- 239000010959 steel Substances 0.000 claims abstract description 99
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 239000011888 foil Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 description 10
- 238000013016 damping Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000000569 greater omentum Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/10—Building or assembling vessels from prefabricated hull blocks, i.e. complete hull cross-sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
- B63B73/43—Welding, e.g. laser welding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The application provides a method for assembling and welding bilge keels in a ship closure stage, two adjacent bilge outer plates are welded and closed, a plurality of backing plates are welded at intervals along the arrangement direction of the bilge keels, and closure welding seams of the bilge outer plates are arranged at the intervals of the two backing plates, so that each backing plate is assembled by avoiding the closure welding seams of the bilge outer plates. And fixing and embedding backing plates are arranged at the interval between two adjacent backing plates so as to form a complete backing plate group along the arrangement direction of the bilge keels. And welding a flat steel group on the pad group to complete the welding of bilge keels in the closing stage of the ship. According to the method and the device, on the premise of ensuring the ship building quality, the welding quality of the bilge keels is ensured, and the stability of the ship is improved. And after the bilge keels are lost, the bilge keels can be prevented from being damaged and extending to the bilge outer plate, and the influence on ship navigation safety is guaranteed.
Description
Technical Field
The application relates to the technical field of ship construction, in particular to a method for assembling and welding bilge keels in a ship closure stage.
Background
The bilge keels are continuous sectional materials installed at bilge parts of the ship and are symmetrically arranged on two sides of the ship. The anti-rolling mechanism is a simple and effective anti-rolling mechanism for the ship, generates an anti-rolling effect by increasing additional rolling damping of the ship, and has important significance for improving the stability of the ship.
The bilge keels are easy to damage due to the fact that the bilge keels bear the transverse force generated by large total longitudinal stress and restoring moment and bear the action of external load, and damage of the bilge keels can extend to the hull outer plates and even break, so that the safety of ships is affected.
In view of the foregoing, it would be desirable to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The purpose of the embodiment of the application is to provide a method for assembling and welding a bilge keel in a ship folding stage, which can ensure welding of a folding weld of a bilge outer plate and can also ensure that the bilge outer plate is not damaged when the bilge keel is assembled and welded.
The method for assembling and welding the bilge keels in the ship closure stage comprises the following steps:
s1, welding and folding two adjacent bilge outer plates, welding a plurality of backing plates along the arrangement direction of bilge keels, arranging the backing plates at intervals, and arranging the folding welding line of the bilge outer plates at the interval of the two backing plates so as to enable each backing plate to avoid the folding welding line of the bilge outer plate for assembly.
S2, mounting built-in backing plates at the intervals between every two adjacent backing plates, and respectively welding the two ends of each built-in backing plate with the two adjacent backing plates to form a complete backing plate group along the arrangement direction of bilge keels.
And S3, welding flat steel groups on the gasket plate groups to finish welding bilge keels in the closing stage of the ship.
In one embodiment, in step S3, the welding the flat steel set to the shim plate set includes:
s31, welding a plurality of flat steels along the arrangement direction of the gasket plate group, wherein the flat steels are arranged at intervals.
S32, mounting embedded flat steel at the interval between two adjacent flat steels, and enabling the butt-joint welding seam of the flat steel and the embedded flat steel to avoid the butt-joint welding seam of the backing plate and the embedded backing plate, wherein the flat steel and the embedded flat steel are connected to form a bilge keel.
In one embodiment, the length of the caulk plate is greater than the length of the caulk plate; the spacing distance between the butt-joint welding seam of the flat steel and the embedded flat steel and the butt-joint welding seam of the backing plate and the embedded backing plate is larger than or equal to 100 mm; and after the butt welding seam of the flat steel and the embedded flat steel is finished, welding the embedded flat steel and the base plate through the fillet welding seam.
In one embodiment, after step S3 is completed, the attachment to the welded bilge keels includes: and welding a plurality of semicircular steels on the bilge keels at intervals, assembling and welding embedded semicircular steels at the intervals, wherein the length of the embedded semicircular steels is greater than that of the embedded flat steels at the corresponding positions.
In one embodiment, a crack stop hole is provided at the root of the butt weld of the flat steel and the embedded flat steel on the side close to the backing plate.
In one embodiment, in step S1, the welding the plurality of tie plates includes: and fixedly welding the backing plate and the outer bilge plate through fillet welds.
In one embodiment, in step S2, the mounting applique includes: and arranging an installation gap between the built-in backing plate and the bilge outer plate, and welding the built-in backing plate and the adjacent backing plate after assembling a copper backing plate or aluminum foil paper at the installation gap. And after the backing plate group is welded, removing the copper backing plate or the aluminum foil paper, and welding and fixing the embedded backing plate and the bilge outer plate through fillet weld.
In one embodiment, the mounting gap is set to 1.5-2 mm.
Compared with the prior art, the beneficial effect of this application is:
according to the technical scheme, when the bilge keels and the bilge outer plates are welded, the welding pad plate set is additionally arranged between the bilge keels and the bilge outer plates, so that the connection rigidity of the bilge keels is increased, and the running stability of the ship is improved.
When assembling and welding the bilge keels, the pad groups and the flat steel groups are assembled and fixed at intervals, and then the embedded sections are assembled and welded. The welding quality of the folded welding line of the bilge outer plate can be guaranteed, and the bilge outer plate can be prevented from being damaged when the bilge keel is welded.
This application is under the prerequisite of guaranteeing the shipbuilding quality, and it produces the anti-rolling effect to increase the additional roll damping of boats and ships, improves the stability of boats and ships. When the ship runs, the bilge keels are not easy to damage after the ship bears the transverse force generated by large total longitudinal stress and restoring moment and bears the action of external load. And after the bilge keels are lost, the bilge keels can be prevented from being damaged and extending to the bilge outer plate, and the influence on ship navigation safety is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a flowchart illustrating a method for welding a bilge keel at a ship closure phase according to an embodiment of the application;
fig. 2 is a method flowchart of step S3 of the loading and welding method of the bilge keels in the closing stage of the ship in fig. 1;
fig. 3 is a schematic structural diagram of a longitudinal section of a bilge keel of the welding method for the bilge keel in the ship closure phase according to the embodiment of the application;
fig. 4 is a schematic view of a welding structure of a backing plate set of a method for welding a bilge keel at a ship closing stage according to an embodiment of the application;
fig. 5 is a schematic view of a welding structure of a flat steel group of a welding method of a bilge keel at a ship closing stage according to an embodiment of the application;
FIG. 6 is a schematic view of the section A-A of the steel flat set in FIG. 5;
FIG. 7 is a schematic view of a welding structure of a semicircular steel group of a welding method of a bilge keel at a ship closing stage according to an embodiment of the application;
fig. 8 is a schematic structural diagram of the crack-stopping holes of the flat steel group of the method for welding the bilge keels in the ship closing phase according to the embodiment of the application.
Description of the reference numerals:
1. a bilge part outer plate; 2. a gasket group; 3. a flat steel group; 4. an attachment member; 5. closing the welding seam; 6. a base plate; 7. embedding and repairing a base plate; 8. a protective member; 9. a first butt weld; 10. flat steel; 11. embedding and repairing flat steel; 12. a second butt weld; 13. semi-circular steel; 14. embedding and repairing semi-circular steel; 15. a third butt weld; 16. and (5) crack arrest holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
According to the method for assembling and welding the bilge keels in the ship closure phase, as shown in fig. 1, fig. 3 and fig. 4, the method comprises the following steps:
s1, welding and folding two adjacent bilge outer plates 1, welding a plurality of backing plates 6 along the arrangement direction of bilge keels, arranging the backing plates 6 at intervals, and arranging the folding welding line 5 of the bilge outer plates 1 at the interval of the two backing plates 6 so that each backing plate 6 is assembled by avoiding the folding welding line 5 of the bilge outer plates 1.
The length of the bilge keel is 1/3-1/2 of the ship length, and the bilge keel is inevitably covered on the folded welding line of the outer plate of the bilge part, so that the welding pad group is added between the bilge keel and the outer plate of the bilge part to increase the connection rigidity of the bilge keel and improve the running stability of the ship.
S2, mounting the built-in backing plates 7 at the intervals between two adjacent backing plates 6, and respectively welding the two ends of the built-in backing plates 7 with the two adjacent backing plates 6 to form a complete backing plate group 2 along the arrangement direction of bilge keels.
Before the built-in shim plate 7 is assembled, the folded weld 5 of the bilge outer plate 1 is ground to an extra height, and the built-in shim plate 7 is welded while ensuring the folding of the bilge outer plate 1 of the ship.
And S3, welding the flat steel group 3 on the backing plate group 2 to complete the welding of the bilge keels in the closing stage of the ship.
As shown in fig. 3, the shim plate 6 and the flat bar 10 are connected to each other in a T-shape.
The length of the bilge keels is 1/3-1/2, which inevitably covers the closure welds of the outer bilge plates, so the bilge keels are not normally welded directly to the outer bilge plates, but are welded to the outer bilge plates in the form of backing plates. The bilge keels are continuous sectional materials installed at bilge parts of the ship and are symmetrically arranged on two sides of the ship. The anti-rolling mechanism is a simple and effective anti-rolling mechanism for the ship, generates an anti-rolling effect by increasing additional rolling damping of the ship, and has important significance for improving the stability of the ship.
According to the assembling and welding method for the bilge keels in the ship closure phase, when the bilge keels and the bilge outer plates are welded, the welding pad plate set is additionally arranged between the bilge keels and the bilge outer plates, so that the connection rigidity of the bilge keels is increased, and the stability of the ship in operation is improved. When the bilge keels are assembled and welded, the pad plate groups and the flat steel groups are assembled and fixed at intervals, and then the embedded sections are assembled and welded. The welding quality of the folded welding seam of the bilge outer plate 1 and the welding quality of the bilge keel can be guaranteed after the ship is folded. And meanwhile, the bilge outer plate 1 can be ensured not to be damaged when the bilge keels are welded. On the premise of ensuring the ship construction quality, the additional roll damping of the ship is added to generate an anti-rolling effect, and the stability of the ship is improved. When the ship runs, the bilge keels are not easy to damage after the ship bears the transverse force generated by large total longitudinal stress and restoring moment and bears the action of external load. And after the bilge keels are lost, the bilge keels can be prevented from being damaged and extending to the bilge outer plate 1, and the influence on the ship navigation safety is guaranteed.
In one embodiment, in step S1, as shown in fig. 4, welding the plurality of tie plates 6 includes: and fixedly welding the backing plate 6 and the bilge part outer plate 1 through fillet welding.
In one embodiment, in step S2, mounting the caul plate 7 includes:
and an installation gap is arranged between the built-in backing plate 7 and the bilge outer plate 1, and the installation gap is set to be 1.5-2 mm. A copper shim plate or aluminum foil is assembled as a protective member 8 at the mounting gap, and the shim plate 7 and the adjacent shim plate 6 are welded. After the backing plate group 2 is welded, the copper backing plate or the aluminum foil paper is removed, and the embedded backing plate 7 and the bilge outer plate 1 are welded and fixed through fillet weld. By providing the protector 8, the damage of the arc to the bilge outer plate 1 when the shim plate 6 and the shim plate 7 are welded is prevented.
Specifically, the specification of the copper backing plate is 200 multiplied by 40mm, and the thickness is 1-1.5 mm. The specification of the aluminum foil paper is 250 multiplied by 48mm, and 2-3 layers of aluminum foil paper are arranged.
In one embodiment, the butt weld between the shim plate 6 and the shim plate 7 is a first butt weld 9, the bevel of the first butt weld 9 is a V-bevel, the bevel angle is 50 °, and the assembly gap is 2 ± 1 mm.
In one embodiment, as shown in fig. 2 and 5, welding the flat steel group 3 on the shim plate group 2 in step S3 includes:
and S31, welding a plurality of flat steels 10 along the arrangement direction of the backing plate group 2, wherein the flat steels 10 are arranged at intervals.
S32, assembling the embedded flat steel 11 at the interval between two adjacent flat steels 10, assembling the butt-joint welding seam of the flat steel 10 and the embedded flat steel 11 by avoiding the butt-joint welding seam of the backing plate 6 and the embedded backing plate 7, and using the flat steel group 3 after the flat steel 10 is connected with the embedded flat steel 11 as a bilge keel.
Before the embedded flat steel 11 is assembled, the first butt weld 9 between the shim plate 6 and the embedded shim plate 7 is ground to be extra height, then the embedded flat steel 11 is assembled, and the embedded flat steel 11 is assembled and welded on the premise of ensuring the welding quality of the shim plate group 2, so that the installation quality of bilge keels can be improved, and the limit stress of the bilge keels is improved.
In one embodiment, the length of the caulk plate 11 is greater than the length of the caulk plate 7. The butt weld of the flat steel 10 and the embedded flat steel 11 is a second butt weld 12, and the second butt weld 12 is set to avoid the first butt weld 9, so that the spacing distance is greater than or equal to 100 mm. After the butt weld of the flat steel 10 and the embedded flat steel 11 is completed, the second butt weld 12 and the first butt weld 9 are arranged in a staggered manner. It is contemplated that the butt weld is prevented from being located at the same location, which is susceptible to damage, affecting the stress requirements at that location.
The embedded flat steel 11 and the backing plate 6 are welded through fillet welds, one part of each embedded flat steel 11 is in contact with and welded to the backing plate 6, the other part of each embedded flat steel 11 is welded to the embedded backing plate 7, and the embedded flat steel 11 can cross two connecting pieces of the backing plate 6 and the embedded backing plate 7 in consideration so as to enhance the connection rigidity of each flat steel 10.
It should be noted that, as shown in fig. 6, the bevel of the second butt weld 12 in the flat steel group 3 is a V-shaped bevel, the bevel angle is 40 °, and the assembly gap is 4 ± 1 mm.
In one embodiment, after step S3 is completed, the attachment 4 of the bilge keels is welded, and as shown in fig. 3 and 7, the semi-circular steel 13 is attached to the flat steel 10 at the end far from the pad 6 as the bilge keels. The flat steel group 3 can be reinforced for the second time by the arrangement of the semicircular steel 13, and the fluid requirements are satisfied by the shape of the semicircular steel 13. The method specifically comprises the following steps: and a plurality of semicircular steels 13 are welded at intervals in the length direction of the bilge keels, and the embedded semicircular steels 14 are assembled and welded at the intervals.
It should be noted that the second butt weld 12 of the flat steel set is ground to extra height prior to assembly of the caulked semi-circular steel 14. The length of the embedding semi-circular steel 14 is larger than that of the embedding flat steel 11 at the corresponding position.
Specifically, the butt weld of the welded semi-circular steel 13 and the embedded semi-circular steel 14 is a third butt weld 15, the groove form of the third butt weld 15 is a V-shaped groove, the groove angle is 40 degrees, and the assembly gap is 4 +/-1 mm.
In one embodiment, after the third butt weld 15 between the semi-circular steel 13 and the embedded semi-circular steel 14 is welded, the embedded semi-circular steel 14 is welded to the embedded flat steel 11 and the fillet weld between the flat steels, respectively.
In one embodiment, as shown in fig. 8, a crack stop hole 16 is drilled in the root of the butt weld of the flat steel 10 and the makeup flat steel 11 on the side close to the shim plate 6. The distance of the crack stop holes 16 from the shim pack 2 was 20 mm. The diameter of the crack stop hole 16 is 25mm to release the weld stress and prevent the generation of a restraint crack and extend to the gasket assembly 2.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. A method for assembling and welding bilge keels in a ship closure stage is characterized by comprising the following steps:
s1, welding and folding two adjacent bilge outer plates, welding a plurality of backing plates along the arrangement direction of bilge keels, arranging the backing plates at intervals, and arranging the folding welding line of the bilge outer plates at the interval of the two backing plates so that each backing plate is assembled by avoiding the folding welding line of the bilge outer plate;
s2, mounting embedded backing plates at the intervals between two adjacent backing plates, and respectively welding two ends of each embedded backing plate with the two adjacent backing plates to form a complete backing plate set along the arrangement direction of bilge keels;
and S3, welding flat steel groups on the gasket plate groups to finish welding bilge keels in the closing stage of the ship.
2. The method for welding the bilge keels during the ship' S closure phase according to claim 1, wherein said welding the flat steel groups on the pad groups in step S3 comprises:
s31, welding a plurality of flat steels along the arrangement direction of the gasket plate group, wherein the flat steels are arranged at intervals;
s32, mounting embedded flat steel at the interval between two adjacent flat steels, and enabling the butt-joint welding seam of the flat steel and the embedded flat steel to avoid the butt-joint welding seam of the backing plate and the embedded backing plate, wherein the flat steel and the embedded flat steel are connected to form a bilge keel.
3. The method for welding the bilge keels in the ship closure phase according to claim 2, wherein the length of the embedded flat steel is larger than that of the embedded backing plate; the spacing distance between the butt-joint welding seam of the flat steel and the embedded flat steel and the butt-joint welding seam of the backing plate and the embedded backing plate is larger than or equal to 100 mm;
and after the butt welding seam of the flat steel and the embedded flat steel is finished, welding the embedded flat steel and the backing plate through fillet welding.
4. The method for welding the bilge keels in the ship closure phase according to claim 1, wherein after the step S3 is completed, the welding of the additional members on the bilge keels comprises:
and welding a plurality of semicircular steels on the bilge keels at intervals, assembling and welding embedded semicircular steels at the intervals, wherein the length of the embedded semicircular steels is greater than that of the embedded flat steels at the corresponding positions.
5. The method for welding the bilge keels in the ship closure phase according to claim 4, wherein a crack stop hole is formed in the root of the butt weld of the flat steel and the embedded flat steel, which is close to one side of the backing plate.
6. The method for welding the bilge keels in the ship closure phase according to claim 1, wherein in step S1, the welding the plurality of pads comprises: and fixedly welding the backing plate and the outer plate of the bilge part through a fillet weld.
7. The method for welding the bilge keels in the ship closure phase according to claim 1, wherein in step S2, said installing of the patch plate comprises:
arranging an installation gap between the built-in backing plate and the bilge outer plate, and welding the built-in backing plate and the adjacent backing plate after assembling a copper backing plate or aluminum foil paper at the installation gap;
and after the backing plate group is welded, removing the copper backing plate or the aluminum foil paper, and welding and fixing the embedded backing plate and the bilge outer plate through fillet weld.
8. The method for welding the bilge keels in the ship closure phase according to claim 7, wherein the installation clearance is set to be 1.5-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210601576.8A CN114954831A (en) | 2022-05-30 | 2022-05-30 | Assembling and welding method for bilge keels in ship closure stage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210601576.8A CN114954831A (en) | 2022-05-30 | 2022-05-30 | Assembling and welding method for bilge keels in ship closure stage |
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| CN114954831A true CN114954831A (en) | 2022-08-30 |
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| CN202210601576.8A Pending CN114954831A (en) | 2022-05-30 | 2022-05-30 | Assembling and welding method for bilge keels in ship closure stage |
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|---|---|---|---|---|
| CN105416523A (en) * | 2015-11-30 | 2016-03-23 | 中船黄埔文冲船舶有限公司 | Double-plate bilge keel and mounting method thereof |
| CN106516001A (en) * | 2017-01-05 | 2017-03-22 | 上海江南长兴重工有限责任公司 | Ship bilge keel positioning and mounting method |
| CN211167283U (en) * | 2019-06-18 | 2020-08-04 | 沪东中华造船(集团)有限公司 | Large-scale L NG bilge keel under high ice level |
| CN111619758A (en) * | 2020-05-29 | 2020-09-04 | 广船国际有限公司 | Method for mounting keel backing plate of bilge of ship body |
| CN113022807A (en) * | 2021-04-27 | 2021-06-25 | 广船国际有限公司 | Bilge keel structure of ship |
| CN113147997A (en) * | 2021-04-23 | 2021-07-23 | 中船黄埔文冲船舶有限公司 | Bilge keel structure and construction method thereof |
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2022
- 2022-05-30 CN CN202210601576.8A patent/CN114954831A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105416523A (en) * | 2015-11-30 | 2016-03-23 | 中船黄埔文冲船舶有限公司 | Double-plate bilge keel and mounting method thereof |
| CN106516001A (en) * | 2017-01-05 | 2017-03-22 | 上海江南长兴重工有限责任公司 | Ship bilge keel positioning and mounting method |
| CN211167283U (en) * | 2019-06-18 | 2020-08-04 | 沪东中华造船(集团)有限公司 | Large-scale L NG bilge keel under high ice level |
| CN111619758A (en) * | 2020-05-29 | 2020-09-04 | 广船国际有限公司 | Method for mounting keel backing plate of bilge of ship body |
| CN113147997A (en) * | 2021-04-23 | 2021-07-23 | 中船黄埔文冲船舶有限公司 | Bilge keel structure and construction method thereof |
| CN113022807A (en) * | 2021-04-27 | 2021-06-25 | 广船国际有限公司 | Bilge keel structure of ship |
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